Cement or adhesive applying device



W. BRAMMER.

CEMENT 0R ADHESIVE APPLYING DEVICE. APPLICATION FILED sEPT.8, I919...

1,361,819. Patented Dec; 14,1920.

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' UNITED STATES PATENT OFFICE.

CEMENT 0R ADHESIVE APPLYING DEVICE.

Specification of Letters Patent.

Patented Dec. 14, 1920.

Application filed September 8, 1919. Serial No. 322,380.

To all whom it may concern:

Be it known that I, VILLIAM BRAMMER, a citizen of the United States,residing at Haverhill, in the county of Essex and State cement or otheradhesive to tape or other binder material, to provide a labor savingdevice accomplishing in a fraction of the time consumption that whichhas ordinarily been a considerable factor in the process of manufacture,to insure a substantial saving in the amount of adhesive used for agiven purpose, to provide an eflicient means of mechanically applyingadhesive to just enough of the tape or binder surface so that when saidtape or binder is applied under pressure none of the adhesive will oozefrom beneath its edges, to provide an efficient automatic gage whichregulates the amount of adhesive used by the applying mechanism, and toprovide other advantages and results some of which may be referred, toin the following specification.

I attain the objectsof my invention as illustrated in the accompanyingdrawing. in which Figure 1 outlines a side view of my invention; Fig. 2shows an end view; Fig. 3 shows an enlarged detailed view of my adhesiveapplying wheel; Fig. 4 shows my lower tape or hinder guide; Fig. 5 showsmy upper tape or hinder guide; Fig. 6 shows my intermediate tape orbinder guide and automatic gage.

Similar letters refer to similar parts th ou hout the several views.

Referring again to Fig. 1, A shows an adhesive reservoir in which thesupply of cement or other adhesive is stored awaiting its consumption,in the operation of myimproved device. The reservoir A is equipped withan air tight cap B at its top, and an outlet C near its base. Over theoutlet C is a sliding can D, which may be raised or lowered at will, soas to open or close the outlet C. This outlet C opens into an opensupply chamber E, in which revolves the adhesive applying roll F,revolving on its axis Gr, which operates in the bearings H, one of whichbearings,.H, is secured to the outer wall of the open supply chamber E,and the other of which is secured to the wall of the reservoir A. Ishows a supporting upright projecting upward from the base J of mydevice. The upright I supports a tape or hinder holding roll K uponwhich is wound the material intended to be used in my device. L showsthe tape or binder material as it unrolls from the holding roll K andpasses downward onto the adhesive applying roll F, first passing throughthe slots Z in the retarding guide M which serve to give a tension tothe tape or binder material. N shows my intermediate tape or binderguide through the slot Z of which the tape or binder material passesjust prior to its contact with the applying roll F. 0 shows the lowertape or binder material guide through the slot Z of which the tape orhinder material passes after it comes from the adhesive applying roll F.P shows an upright post secured to my base J upon which revolves theroller Q intended for optional use in applying the tape or bindermaterial to the article upon which it is to be attached. R shows ametallic guide located just to one side of the roller Q, so as to act asa gage from or against which to operate. a S shows my automatic gage andhinged or pivoted bracket, upon which. is rigidly secured the guide N,

and said bracket is fastened to the wall of the open supply chamber E atT, its outside prongs U which are relatively long, extend along theouter-sides of the applying roll F, and serve to retain the bracket ints proper position, and the short prongs U" extend into the channels ofthe roll F to regulate the depth of the paste therein.

In Fig. 2, V shows a tension nut by which the bearing of the holdingroll K is tightened.

Fig. 3 shows that the circumference of the applying roll F is grooved bythe channels W. X represents the outer circumference. It is thesechannels, W, in which the cement or other adhesive is carried from thebottom of the open supply chamber E to the top of the applying roll Fwhere it contacts with the tape or binder material L.

Fig. 4 shows the detail of my lower tape or binder guide. Y representsthe rivets by means of which it is fastened to the-side 7 of the opensupply chamber E. Z shows the slot through which the tape or bindermaterial passes as it comes off from the applying roll F.

In Fig. 5, Y likewise show the rivets by means of which my upper tape orbinder guide is fastened in its position to the side of the reservoir. Zlikewise represents the slots through which the tape or binder. materialpasses as it comes from the roll K.

In Fig. 6, it will be noted, the prongs U fit in and about thecircumference of the applying roll F and protrude into the channels W,so as to act as a scraper, eliminating all cement or adhesives from theapplying roll F, other than is contained in the bottom of the channelsWV.

In operation it will be understood that the cement or other adhesiveused in my device is supplied from the air tight reservoir A into theopen supply chamber E, where the level of the adhesive is main tained atthe top of the opening or outlet C. As the adhesive in the open supplychamber E is used, it is automatically re placed by a fresh supply fromthe reservoir. It is of course necessary to close the opening 0 .withthe slide D before removing the air tight cap B to replenish the storagesupply of adhesive. The tape or binder material, L, as it comes from theroll K, first passes through the grooves Z in the gage M, which acts asa brake or retarder, then passes through the intermediate gage end Z uponto and over the applying roll F, and then through the lower gage O atZ to any point where it is needed or desired. The tension caused by thegage M gives just enough pressure to the tape or binder material as it.passes over the applying roll F so that a portion of the material isdrawn down into the channels W, where it contacts with and picks up thecement or other adhesive used, so that as the tape or binder materialpasses off through Z of the gage O, the said adhesive is placed inparallel lines along its under surface. This parallel disposition of theadhesive material is particularly advantageous over and above any otherapplication heretofore used, for the'reason that in applying the tape orbinder material to-the surface for which it is intended, the

I spread of the adhesive is just sufiicient to bring it to the edge ofthe tape or binder material. The quantity of adhesive for this purposeis easily regulated by the distance atv which the scraper S is placedfrom the circumference of the applying roll F.

The scraper being pivoted, and the guide N being fixed rigidly thereto,it is obvious that the greater the tension on the tape, the closer thescraper will be drawn to the roll F. In other words, the greater thetension on the tape the tighter it will bear down the-groo e periphe y fth ro l F, an

consequently the intermediate portions of the tape will enter thechannels W. At the same time owing to the-pull on the tape, the guide Nand scraper S will be pulled upwardly, so that the ends of the shortprongs will be close to the bottoms of the channels IV, and the portionsof the scraper between the bases of the short prongs will engage againstthe outer periphery of the roll F. Thus the scraper is automatically adjusted to and from the roll F by the tension placed upon the tape. Thescraper with its tape guide is so pivoted with respect to the roll F,that when a normal tension is placed upon the tape, the portions betweenthe prongs will scrape easily over the outer periphery of the roll F, sothat substantially no paste will be applied to the tape by the peripheryof the roll, but whena slack tension is given the tape it will not enteras deeply into the channels WV, and the scraper will drop a slightdegree, there by allowing a greater depth of paste in the channels withwhich the slackened tape can i contact, but not as intimately therewithas when the tape is under its tightest tension. So that although thepaste is deeper in the channels at this time, the contact of the tapetherewith is lighter and consequently a lesser amount of paste isapplied from the channels, but this amount is slightly amplitied by theaddition of a slight quantity which will be applied by the periphery ofthe roll and which has been allowed to the scraper owing to its slightdropped position due to the slack tension on the tape. In any event theamount of paste applied is only sufficient to cover the surface of thetape without oozing beyond its edges, and always the preponderance ofpaste is applied by the channels in parallel lines.

Having thus described my invention what- I claim as new and desire tosecure by Letters Patent of the United States is:

1. In an adhesive applying device, a ro tatable paste roller,tape-guides for direct: ing the tape into engagement with said roller,and a scraper movable to and from the paste roller. and which isautomatically. controlled to regulate the amountof paste 5 on the rollerby the degree of pull giventhe tape through one of said tape-guides.

2. In an adhesiveia'pplying device, a rotatable paste roller having achanneled periphery, tape-guides for directing the tape 0 intoengagement with said roller, a scraper having prongs to engage in thechannels of the roller to regulate the amount of paste in said channels,said scraper being movable to and from the roller and automatically 125controlled by the degree of pull given the tape through one of saidtape-guides. 1

3. In an adhesive applyingdevice, a rotatable paste roller, a scrapermovable to and from the paste roller to regulate the 130 amount of pasteon said roller, and a tapeguide fixed to said scraper, said scraperbeing automatically controlled by the degree of pull given the tapethrough said tapeguide.

4:. In an adhesive applying device, a rotatable paste roller having achanneled periphery, a scraper movable to and from said roller toregulate the amount of paste thereon and provided with prongs to engagein the channels of the roller and side prongs to engage the sides of theroller, and a tapeguide fixed to said scraper, said scraper beingautomatically controlled by the degree of pull given the tape throughsaid tapeguide.

5. In an adhesive applying device, a rotatable paste roller, a supplychamber for supplying paste to said roller, a scraper pivoted to thewall of said supply chamber and movable to and from the paste roller toregulate the amount of paste thereon, and a tape-guide carried by saidscraper, said scraper being automatically controlled by the degree ofpull given the tape through said tape-guide.

6. In an adhesive applying device, a rotatable paste roller, a scrapermounted to move to and from said paste roller to regulate the amount ofpaste on theroller, a

tape-retarding guide fixed to the device in advance of the paste rollerand scraper, and a tape-guide carried by the scraper and positionedbetween said retarding-guide and the paste roller, the movements of saidscraper being automatically controlled by the degree of pull given thetape through the guide on the scraper.

7. In an adhesive applying device, a rotatable paste roller, a scrapermounted to move to and from said paste roller to regulate the amount ofpaste on said roller, a tape retarding-guide fixed to the device inadvance of the paste roller and scraper, said retarding-guide beingformed'with a pair of parallel slots having dividing bar therebetweenaround which the tape is drawn, and a tape-guide carried by the scraperand positioned between the retarding-guide and paste roller, themovements of said scraper being automatically controlled by the degreeof pull given the tape through the guide on the scraper.

In testimony whereof I aflix my signature in the presence of twowitnesses.

WILLIAM BRAMMER.

Witnesses FRANK H. PA UIN, WILLIAM CULBERT BRAMMER.

